US1149797A - Sewing-machine. - Google Patents

Description

I. THISSEN.

SEWING MACHINE.

APPLICATION FILED IAN. I4, 1915.

Patented Aug. 10, 1915.

4 SHEETS-SHEET I.

Fig

it JZ 5 Inventor Attorney s I I I J. THISSEN.

SEWING MACHINE.

APPLICATION FILED JAN- 14.1915.

1,149,797. Patented Aug. 10, 1915.

4 SHETSSHEET 2.

Inventor Attorneys J. THISSENQ sewme MACHINE APPLICATION FILED JML H. 1915.

1,149,797. Patented Aug. 16,1915.

4 SHEETS-SHEET a.

LIZ/Q2356 Witnesses I Inventor Attorneys J. THISSEN. SEWING MACHINE. APPLICATION FILED JAN- l4. I9l5.

Patented Aug. 10, 1915.

4 SHEETS-SHEET 4.

Witnesses Inventor Attorn eys JACOB TI-IISS'EN, OF WARREN, PENNSY'LVAN IA.

SEWING-MACHINE."

Application filed January 14, 1915.

T all whom it may concern Be it known that I, JACOB THISSEN, a citizen .of the United States, residing at Warren, in the county of Warren and State of Pennsylvania, have invented a new and useful SewingMachine, of which the following is a specification.

The present invention appertains to sewing machines, and relates more particularly to an over stitch sewing machine adapted for sewing the tips of glove fingers.

One of the obriects of the invention, is the provision ofan over stitch or glove stitching sewing machine embodying anovel and improved carriage for holding and supporting the glove fingers or other material, sothat the same will be properly delivered between the feed disks, for the cooperation therewith of the needle and looper, the carriage having unique means for clamping the tip por tions of the glove fingers or other stock applied to the carnage to be sewed.

As a more specific ob ect, th1s invention aims to provide aseries of individual clamping or gripping members .carried by the carriage for clamping and holdlng the glove fingers, 1n combination with means for holding the clamping members at either closed or open position, and means for .simultaneous'ly moving all of the clamping members to open position, so that .the fabric may be readily detached from the carriage by a single operation, and in order that the new glove fingers or sections may be applied one at a time to the carriage.

Another object of the invention, is to provide novel means for adjustably supporting the carriage for reciprocatory movement, in order that the carriage may be adjusted .to cooperate properly with the feed disks and the needle and looper, when the machine is in operation.

Another object of the present invention is to provide novel means for actuating the carriage and one of the feed disks which cooperates therewith.

It is also within the scope .of the invention, to provide'a sewing 'machine embodying the foregoing features, and improved generally in its construction, to enhance the utility thereof.

llVith the foregoing and other, objects in view which will appear as the description proceeds, the invention resides in thelcombination and arrangement .ofparts and .in the details of construction hereinafter de- Specification of Letters Patent.

Patented Aug. 10, 1915.

Serial No. 2,215.

scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in its preferred embodiment in the accompanying drawings, wherein Figure '1 is a plan view of the sewing ma chine, parts being broken away, and the top plate and parts carried thereby being removed.- Fig. 2 is a front view of the machine, portions being broken away. Fig. 3 is a vertical section taken approximately on the line .33 of .Fig. 1, and illustrating the actuating means for the carriage, parts being broken away. Fig. 4 is an enlarged fragmental rear view illustrating one end portion of the carriage. Fig. 5 is across sectional view of the carriage, taken .on .the line .of Fig. i. Fig. 6 is a longitudinal section of the carriage, taken on the line 6.6 .of Fig. 4c. Fig. 7' is a sectional detail taken on the line 77 of Fig. 8. Fig. .8 is .a-

fragmental .detail of the. releasing shaft. Fig. .9 isan elevation. of one of the supports for the .ends of the guide or slide way of the carriage.

The sewing machine illustrated is old and well known in its general .principles,.and-the old features will therefore need no special detailed description, other than a mere reference thereto. Thus, the machine embodies a frame or housing 1, through the sides of which .a driving shaft 2 is journaled, the same being rotated in any suitable manner. AdoublacamB is carried by the shaft 2 for the cotiperagti n therewith of the looper bar 4, as usual, which carries the looper 5,, and the needle bar 6 which is slidable through the front wallof the frame 1 and is opera-. tively Connected with the shaft 2 in the .01 3 ternary manner, and carries the needle 7 at its forward or outer end. The looper .5 and needle 7 work over the adjacent portions of a pair of feed .disks or wheels 8 and .9, the inner or rear feed disk 8 being carried by the upper end .of an upright shaft 11 jourr nale d through the frame at the front there-, of. The .outer or front feed disk 9-.iscarried .by the upper end of ,a curved arm .orbracket 10,, which is fulcrumed to the f orward portion of the frame 1, to enable the feed..disk 9-to beswung forwardly .or outwardly to allow the carriage to be removed.

'Slhe' aetnating .means which operativelyconnects the driving shaft 2 and the feed shaft 11, embodies a horizontal counter shaft 12 journaled through the front and rear walls of the frame 1 below the driving shaft 2, and having a worm wheel 13 secured thereon and intermeshing with a worm 14 secured upon the driving shaft 2.

A worm 15 is secured upon the forward pro-' truding end of the counter shaft 12, and in termeshes with a worm wheel 16 secured upon the feed shaft 11. In this manner, the counter shaft 12 is rotated at a slower velocity than the driving shaft 2, and the feed shaft 11 is rotated at a slower velocity than the counter shaft 12, so that the feed shaft 11 will be rotated at a relatively low speed, with respect to the stitch forming mechanism.

In order to support the carriage for reciprocatory movement below the adjacent portions of the feed disks 8 and 9, a chair 17 is mounted upon the forward portion of the frame 1 below the feed disks, and is provided with an upper elongated channeled head 18 within which the intermediate portion of the guide or slide way 19 is secured. The guide or slide way 19 is provided with a longitudinal channel 20 in its top, and is of sufficient length for properly guiding the carriage 21 for rectilinear movement thereon.

The chair 17 is mounted adjustably upon the frame 1, in order that the guide or slide way 19 may be adjusted properly to allow the carriage to cooperate with the needle and looper, and to this end, the lower portion of the chair 17 is provided with a pair of inclined bearing surfaces 22 which seat upon a pair of inclined bearing surfaces 23 formed upon the forward portion of the frame 1, in order that when the chair 17 is adjusted longitudinally, it will be raised or lowered according to the direction in which it is moved. The base of the chair 17 is provided with a pair of slots 24 above the bearing surfaces 23 of the frame, and clamping screws 25 extend through the slots 24 and threadedly engage the frame, in order that when the screws 25 are tightened, they will clamp the chair 17 at its adjusted position, and prevent the chair from swinging or vibrating. As a means for adjusting the chair 17 to a nicety, the frame 1 is provided at the remote ends of the inclined surfaces 23, with upstanding ears 26, through which adjusting screws 27 are threaded to bear against the ends of the chair 17. Thus, when one of the adjusting screws 27 is loosened, the other may be threaded to force the chair 17 in advance thereof, and when both of the screws 27 are tightened, they will bear against the ends of the chair to hold the chair against longitudinal movement. It is evident that by adjusting the screws 27, the chair 17 may be accuratelyadjusted for properly supporting the guide or slide way 19 carried by the chair.

As a means for adjustably supporting the ends of the guide or slide way 19, standards 28 are secured upon the table or other baseupon which the frame or casing 1 is secured, below the ends of the guide 19, and are preferably formed from bars having their upper and lower ends bent angularly. Adjusting screws 29 are threaded upwardly through the upper end portions of the standards 28 and bear against the bottom of the guide 19 adjacent the ends thereof, in order that the screws 29 may be adjusted for properly supportingthe ends of the guide. Locking or binding nuts 30 are preferably threaded upon the screws 29 for binding them at the positions to which they are adjusted, in order that they will not become loosened accidentally. I

A support is also provided beyond one end of the guide 19, for supporting the respective end of the carriage 21, when the carriage is moved partially out of the guide 19 when the series or row of glove fingers have nearly passed through the stitching mechanism. To this end, astandard 31, resembling the standard 28, is secured upon the table or other base beyond one endof the guide 19, and a vertical shank 32 is slidable through the upper end portion of the standard 31, and has a pair of clamping or binding nuts 33 threaded thereon to bear against the upper end portion of the standard 31 for holding the shank 32 at various adjusted positions. The upper end of the shank 32 has a fork 34 within which a bearing wheel or roller 35 is journaled, the wheel 35 being supported at such a vertically adjusted position, as to receive the carriage 21 thereon when the carriage is projected sufliciently out of the guide 19 during the completion of the stitching of the material supported by the carriage.

Coming to the detail construction of the carriage 21, the same embodies a bar 36 of suitable length, and set on edge, so that its lower edge portion is slidable within the channel or groove 20 of the guide or slide way 19, and the lower edge portion of the bar 36 is provided at its rear or inner side, with a rack 89, which intermeshes with a spur gear 38 secured upon the feed shaft 11 below the worm wheel 16. Consequently, the carriage 20 is moved longitudinally at the proper speed by the feed shaft 11, it be ing noted that the feed disk 8 is also carried bv the shaft '11, so that the said feed disk and carriage will move at the same relative speed. The spur gear 38 works through a recess or cut away portion 39 of the guide or slide way 19 at the rear of the channel 20.

The carriage embodies means for supporting or holding the glove fingers or other articles to be sewed, and to this end, an

elongated horizontal plate has itslo-wer edge portionsecured in any suitable manner to the front side of the bar 36, and the upper edge portion of the plate 40 is adapted to receive thereover, the glove fingers or other articles, and is arranged to move between the .disks 8 and 9 under the looper 5 and needle .7, so that the material carried by the upper edge of the plate 40 Wlll be stitched over the upper edge of the .said plate. The over stitch mechanism and op eration is well known, and needs no specific description, and the cooperation of the carriage with the stitch forming mechanism will also be obvious to those versed in the art.

The means for clamping or gripping the glove fingers upon the carriage 21, or against the. plate 40 thereof, includes a lon gitudinal metal cleat 141 secured to the rear or inner side of the plate 40between the upper and. lower edges thereof, and having a longitudinal series of notches .or recesses 42,.and a lower longitudinal groove 43. An upright clamping lever 44 is .fulcrumed withineach notch of the cleat 41, each of the levers 44 having a pair of laterally projecting trunnions or lugs 45 intermediate of its ends and projecting from its opposite sides, and the lugs 45 of the levers are seated upwardly within the groove 43 of the cleat 41, to fulcrum the levers to the carriage. The upper arms or ends of the levers 44 which are remote from the bar 36 are in the form of flat jaws 46 terminating slightly belowthe upper edge of the plate40, and which are adapted for clamping'the glove fingers or other articles47. against the rear side of the supporting -plate40. The lower arms or ends of the levers 44 are rounded. as at 47. for cooperation with the devices for holding the jaws 46 in either closed or opened position. To this end, the upper edge portion of thebar 36 of the carriage, is provided with a. longitudinal series of bores or socketsr-48 within the mouthportions of which balls 49 are movable or slidable, coiled wire expansion springs .50 being seated in the sockets 48 under the balls 49. to yieldably raise the same against the lower rounded ends 47 of the levers 44. The lower ends or. arms of the'levers'44 are adapted to work backwardly and forwardly over the spring pressed balls 49, to positions in rear or in front of the'same, whereby the balls 49 will hold the levers 44 at either open or closed position. Thus, whenone of the levers 44 is swung from one position to the,

other, the lower rounded end of the lever will press the spring pressed ball 49 downwardly, and when the lever assumes the new position, the ball 49 will be raised to hold the lever in its new position. It is evident at this point, that the levers 44 are independent or separate, in order that they may be independently manipulated for clamping theqglove fingers or other articles upon the plate 4.0, in the order that the articles are applied to the carriage. The articles may thus be applied one at a time to-the carriage, and clamped thereto as they'are applied.

A releasing device is employed whereby allof the levers 44 :may be swung to open or released positionsimultaneously, and to this end, a longitudinal releasing shaft 51 is journaled through suitable bearings 53 carried by the rear side of the plate 40.

The releasingshaft 51 is disposed immedi ately in rear of the lower arms of the levers 44, and is provided at one end with a suitable, radial handle 52, whereby the shaft 51 may be rocked or oscillated to swing the levers to open or released position. The shaft.51 is provided with notches or recesses 54 complementing the lower arms of the levers 44, and arranged to receive the same when the levers 22 are swung to closed position, and whereby the adjacent portions of the shaft 51 serve as cams to bear against the lower arms of the lever-s 44, and swing saidlower arms forwardly when the handle 52 is swung properly, so as to swing the levers 44 to open position.

In use, the carriage 21 may be lifted out of the guide or slide way 19, when the arm or bracket 10 is swung forwardly to separate the feed disks 8 and 9, and then, by rocking the shaft 51 properly, the levers 44 will be swung open simultaneously, which will immediately release the articles from the carriage, and enable the new glove fingers or articles to be applied over the upper edge of the plate 40 one at at time, and as the articles are applied to the carriage, the respective levers 44- may be sprung to clamping position for holding the successive articles in place. Then, when the carriage is filled, it may be replaced within the guide 19, for cooperation with the stitching and feeding mechanisms. It is obvious, that as the machine is operated, the carriage will be fed slowly under the stitching mechanism, so that those portions of the glove fingers or other articles 47 above the upper edge of the plate 40, will be stitched'together, the present machine being intended particularly for glove stitching purposes. g I The other advantages and attributes of the invention are thought to be obvious from the foregoing, taken in connection with the drawings, without further comment being necessary.

It is to be noted that the springs in raising the balls or detent elements. 49, will also serve to hold the levers 44 raised, so that their trunnions or pivots 45 will remain within the groove 43 of the cleat 41'.

Having thus described the invention, what is claimed as new is;

l. In.asewingrmachine, a frame, .a car-.

riage carried by the frame and having a rack, a driving shaft carried'by the frame, a counter shaft carried by the frame, a worm secured upon the driving shaft, a worm wheel secured upon the counter shaft and intermeshing with the said worm, a feed shaft, a feed disk carried by the feed shaft and cooperating with the carriage, a spur gear carried by the feed shaft and internieshing withthe said rack, a worm secured upon the counter shaft, and a worm wheel secured upon the feed shaft and intermeshing with the last mentioned worm.

In a sewing machine, a frame having an inclined surface, a chair having an inclined surface seating upon the aforesaid inclined surface, a slide way carried by the chair, acarriage movable upon the slide way, and means for adjusting and holding the chair upon the first mentioned inclined surface.

3. In a sewing machine, a frame having a pair of inclined surfaces, a chair having a pair of inclined surfaces seating upon the aforesaid inclined surfaces, a slide way'carried by the chair, a carriage movable upon the slide way, the frame having upstanding portions at the remote endsof the inclined surfaces, adjusting screws threaded through the said portions and bearing against theends of the chair for adjusting it, and means for clamping the chair upon the first mentioned inclined surfaces.

A sewing machine carriage having a plate adapted to support articles over its upper edge portion, a series of clamping devices carried by the carriage and 006perable with the plate to clamp the articles thereagainst, the clamping devices being adapted to be moved to clamping and released positions, means for independently holding the clamping devices at either clamping or released'position, and means for simultaneously swinging the clamping devices to released position. v

5. A sewing machine carriage having a plate adapted to receive articles over its upper edge,',a series of clamping devices carried by the carriage and cooperable with the plate to clamp the articles thereagainst, yield-able means for independently holding the clamping devices at either clamping or released positions, and a longitudinal shaft journaled to the carriage and having portions coiiperable with the clamping devices for simultaneously moving them to released position. v

6. A sewing machine carriage having a plate adapted to receive articles over its upper edge, a series of levers fulcrumed to the carriage and having jaws coiiperable with the said plate for clamping the articles thereagainst, yieldable means coiiperable with the levers for independently holding them at either open or closed positions, and

a longitudinal shaft journaled to the carriage and having portions coiiperable with the levers for simultaneously swinging them to open position.

7. A- sewing machine carriage having a plate adapted to receive articles over one edge, clamping levers journaled to the carriage and having jaws cotiperable with the said plate to clamp the articles thereagainst, yieldable means carried by the carriage and cooperable with the levers for independently holding them at either open or closed positions, and alongitudinal shaft journaled to the carriage and having recesses for receiving the levers and forming portions cooperable therewith to swing them to open position simultaneously.

8. A sewing machine carriage having a plate adapted to receive articles over its edge, clamping levers fulcrumed intermediate their ends to the carriage, each lever having one arm in the form of a jaw cooperable with the said plate to clamp one of the articles thereagainst, and a spring pressed detent carried by the carriage and coiiperable with the other arm of each lever for holding the lever at either open or closed position 9. A sewing machine carriage havin a plate adapted to receive articles over its edge, clamping levers fulcrumed intermediate their ends tothe carriage, each lever having one arm in the form of a jaw coiiperable with the said plate to clamp one of the articles thereagainst, a spring pressed detent carried by the carriage and cotiperable with the other arm of each lever for holding the lever at either open or closed position, and means for simultaneously swinging the levers to open position.

10. A sewing machine carriage having a plate adapted to receive articles over its edge, clamping levers fulcrumed intermediate their ends to the carriage, each lever having one arm in the form of a jaw cooperable with the said plate to clamp one of the articles thereagainst, a spring pressed detent carried by the carriage and cooperable with the other arm of each lever for holding the lever at either open or closed position, and a longitudinal shaft journaled to the carriage and having portions coiiperable with the levers for simultaneously swinging them to open position.

11. A sewing machine carriage embodying a bar, a plate secured thereto, and adapted to receivearticles over its edge, a cleat secured to the plate, levers fulcrumed to the cleat, those arms of the levers remote from the bar having jaws cotiperable with the plate to clamp the articles thereagainst, and yieldable elements carried by the bar and cooperable with the other arms of the levers to hold the levers at either closed or open positions, V

12. A sewing machine carriage embodying a bar, a plate secured thereto and adapted to receive articles over its edge, a c'leat secured to the plate, levers fulcrumed to the cleat, those arms of the levers remote from the bar having jaws cooperable with the plate to clamp the articles thereagainst, yieldable elements carried by the bar and cooperable with the other arms of the levers to hold the levers at either closed or open positions, and means carried by the carriage for simultaneously swinging the levers to open position. j

13. A sewing machine carriage embodying a bar, a plate secured thereto and adapted to receive articles over its edge, a cleat secured to the plate, levers fulcrumed' to the cleat, those arms of the levers remote from thebarhaving jaws cooperable with the plate to clamp the articlestheregainst, yieldable,

elements carried by the bar and cooperable with the other arms of the levers t'ohol'd the levers at either closed or open positions, and a longitudinal shaft jou-rna-led to the carriage and having portions cooperable with the last mentioned arms of the levers for swinging them to simultaneously swing the.

levers to open position.

1 1. A sewing machine carriage having a plate adapted to receive articles over its edge, a cleat carried by the carriage and having a series of notches and a longitudinal groove, clamping levers disposed within the said notches and having trunnions intermediate their ends seated in the said groove, one arm of each lever having a jaw cooperable with the said plate for clamping one of the articles thereagainst, and yieldable elements carried by the carriage and cooperable with the other arms of the levers for holding the levers at either open or closed position and for holding the trunnions thereof seated within the said groove.

15. A sewing machine carriage having a plate adapted to receive articles over its edge, a cleat carried by the carriage and having a series of notches and a longitudinal groove, clamping levers disposed within the said notches and having trunnions intermediate their ends seated in the said groove,

one arm of each lever having a jaw cooperable with the said plate for clamping one of the articles thereagainst, yieldable elements carried by the carriage and cooperable with the other arms of the levers for holding the levers at either open or closed position and for holding the trunnions thereof seated within the said groove, and means for simultaneously swinging the levers to open position.

16. A sewing machine carriage embodying a bar and a plate secured thereto and adapted to receive articles over its edge, a cleat secured to the plate and having a series of notches and a longitudinal groove, clamping levers disposed within the said notches and haw-"ing trunnions intermediate their ends seated in the said groove, those arms of the levers remote from the bar having jaws cooperable with the said plate for clamping the articles thereagainst, the bar having sockets, spring pressed detents working within the said sockets and coiiperating with those arms of the levers adjacent the bar, for holding the levers at either closed or open position.

17. A sewing machine carriage embodying a bar and a plate secured thereto and adapted to receive articles over its edge, a cleat secured to the plate and having a series of notches and a longitudinal groove, clamping levers disposed within the said notches and having trunnions intermediate their ends seated in the said groove, those arms of the levers remote from the bar having jaws cooperable with the said plate for clamping the articles thereagainst, the bar having sockets, spring pressed detents work ing within the said sockets and cooperating with those arms of the levers adjacent the bar for holding the levers at either closed or open position, and a longitudinal shaft journaled to the frame and having portions cooperable with the last mentioned arms of the levers for simultaneously swinging the levers to open position.

18. A sewing machine carriage having a plate adapted to receive articles over its edge, a series of levers fulcrumed intermedi-' ate their ends to the carriage, one arm of each lever having a jaw cooper-able with the plate to clamp one of the articles thereagainst, the other arm of each lever having a rounded end, the carriage having sockets, balls working within the mouths of the said sockets, and cooperable with the rounded ends of the levers, and springs seated within the sockets for'pressing the balls into cooperative relation with the rounded ends of the levers, whereby the levers will be held at either open or closed positions.

19. A sewing machine carriage having a plate adapted to receive articles over its edge, a series of levers fulcrumed intermediate their ends to the carriage, one arm of each lever having a aw cooperable w1th the plate to clamp one of the articles there adapted to receive articles over its edge, a cleat secured to the plate and having a series of notches and a longitudinal groove, clamping levers disposed within the said notches and having trunnions intermediate their ends seated in the said groove, those arms of the levers remote from the bar having aws coiiperating with the said plate for clampends seated in the said groove, those arms of the levers adjacent the bar having rounded ends, the bar having sockets, balls Working Within the mouths of the said sockets and cooperable with the rounded end of the levers, and springs seated within the said sockets for holding the balls against the rounded ends of the levers for holding the levers at either open or closed positions.

21. A sewing machine carriage embodying a bar and a plate secured thereto, and adapted to receive articles over its edge, a cleat secured to the plate and having a series of notches, and a longitudinal groove,

clamping levers disposed Within the said notches and having trunnions intermediate their ends seated in the said groove, those arms of the levers remote from the bar having jaws cooperable With the said plate for clamping the articles thereagainst, those arms of the levers adjacent the bar having rounded ends, the bar having sockets, balls working within the mouths of the said sockets and coiiperable With the rounded ends of the levers, springs seated within the said sockets for holding the balls against the rounded ends of the levers for holding the levers at either open or closed positions, and a longitudinal shaft journaled to the carriage and having portions cooper-able with the last mentioned arms of the levers for swinging the levers simultaneously to open position. i

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

I JACOB THISSEN.

Witnesses:

JOHN SIGGINS, Jr., MATTIE SNY ER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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